Preferred choice of runflat tyre for E85 Z4

[mbtech01]

Hi. I'm after recommendations from E85 Z4 owners as to what runflat tyres are the preferred choice. I need to replace the front 18" Bridgestone's that are currently fitted to my car & just want to see what opinions people have as to what brand of tyre to go for. I appreciate there are lots of forums on the subject of tyre choice & switching to non runflats which improve vehicle driveability & road handling characteristics etc of the Z4 but i want to stick with the runflat tyre & just want a tyre that hopefully gives better handling etc than what I'm currently experiencing with the Bridgestone's as fitted to my car.
I've read that the Contintal runflat tyres are a vast improvement over the standard fit Bridgestone's & they reduce tramlineing etc whilst I've also seen good reports on the Good year Eagle tyre as well.
Has anyone fitted either of these runflat tyres to their Z4's & if so what do you think or is there another choice favoured by anyone or is it just a case of stick with the original recommended Bridgestone's

[Wills2]

I'm looking for a new set of tyres for the Z4C and I will be dropping the RFT in favour of "normal" tyres, I'll probably put PS3s on if I can get the correct spec.

[mackie1]

mytyres.co.uk (no affiliation) have the correct sizes (assuming 18" wheels) of Goodyear Eagle F1 Assymetric 2 in stock. I get my E86 tomorrow and it's got fairly new Bridgestone runflats on it at the moment but I'm planning of annihilating them at Snetterton some time soon and replacing with the above non-runflats. The do a runflat version of the F1s but they don't seem to be available in 255/35R18.

[4damski]

I had Michelin PS2 run flats on my Z4 when I first bought it. Great dry grip, astonishing wet grip, and they didnt tramline as bad as Bridgestone Potenza.

However, I have now moved to non run flats all round, and the car has been transformed. Ride is a lot less harsh, and the car is less fidgity.

[richtea78]

Another vote for the Michelins for me, only downside is the price compared to non run flats